Question: (Question 1. 15pts) Explain the function/purpose of the following sequence of program state- ment...

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(Question 1. 15pts) Explain the function/purpose of the following sequence of program state- ments by expressing the postcondition and then prove that the program is correct using the axiomatic verification method. Precondition: A and y - B t=x x=y y-t

Show transcribed image text(Question 1. 15pts) Explain the function/purpose of the following sequence of program state- ments by expressing the postcondition and then prove that the program is correct using the axiomatic verification method. Precondition: A and y - B t=x x=y y-t